Update Grammars.java - #CleanUpGithub

This comment has been identified as either hateful, hurtful or discriminatory as part of a project to #CleanUpGitHub. This pull request was made by a human. For more info, please check EthicalCode’s website at www.ethicalco.de/cleanupgh

That awkward moment when you're at an ethical coding event and your societies repo comes up...Hi Martin!
Merge pull request #1 from jdNash/master

Update Grammars.java - #CleanUpGithub